Twin Peaks are modest-size
Martian
hills located to the southwest of the
Mars Pathfinder
landing site. The peaks are approximately 30-35
meters (~100 feet) tall. North Twin is approximately 860 meters
(2800 feet) from the lander, and South Twin is about a kilometer
away (3300 feet). The scene includes bouldery ridges and swales
or 'hummocks' of flood debris that range from a few tens of
meters away from the lander to the distance of the
South Twin Peak. (Picture courtesy of NASA/JPL)